考虑到氢原子水平动力学的超热木星 Kelt9b 大气层大气物理学

IF 1.1 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS Astronomy Reports Pub Date : 2024-10-25 DOI:10.1134/S1063772924700732

I. F. Shaikhislamov, I. B. Miroshnichenko, M. S. Rumenskikh, A. V. Shepelin, A. G. Berezutsky, S. S. Sharipov, M. P. Golubovsky, A. A. Chibranov, M. L. Khodachenko

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摘要

超热木星Kelt9b促使人们重新考虑现有的热系外行星上层大气模型，这些模型以前是利用G或M恒星系统（如HD209458b和GJ436b）的例子建立的。A 级恒星的辐射与大气之间相互作用的独特条件要求对元素（主要是氢原子）的激发水平进行动力学建模。Kelt9b 显示了几条巴尔默线和一些重元素线的吸收，对它们的定量解释是一个亟待解决的问题。在这项研究中，首次对一颗罗氏叶位置较近的行星的大气层进行了三维建模，并考虑到了激发氢的气态和动力学。

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Aeronomy of the Atmosphere of Ultra-Hot Jupiter Kelt9b with Allowance for the Kinetics of Hydrogen Atom Levels

Ultra-hot Jupiter Kelt9b impels to reconsider existing models of the upper atmospheres of hot exoplanets, which were previously developed using examples of G or M star systems such as HD209458b and GJ436b. The unique conditions of interaction between the radiation of an A-class star and the atmosphere necessitate kinetic modeling of excited levels of elements, primarily the hydrogen atom. Kelt9b shows the absorption for several Balmer lines and lines of a number of heavy elements, the quantitative interpretation of which is an urgent problem. In this study, for the first time, 3D modeling of the atmosphere of a planet with a close location of the Roche lobe is implemented with allowance for the aeronomy and kinetics of excited hydrogen.

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来源期刊

Astronomy Reports 地学天文-天文与天体物理

CiteScore

1.40

自引率

20.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Astronomy Reports is an international peer reviewed journal that publishes original papers on astronomical topics, including theoretical and observational astrophysics, physics of the Sun, planetary astrophysics, radio astronomy, stellar astronomy, celestial mechanics, and astronomy methods and instrumentation.